8729642693 has 8 divisors (see below), whose sum is σ = 8974663680. Its totient is φ = 8485099920.

The previous prime is 8729642689. The next prime is 8729642707. The reversal of 8729642693 is 3962469278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8729642693 - 2² = 8729642689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8729641693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82373 + ... + 155706.

It is an arithmetic number, because the mean of its divisors is an integer number (1121832960).

Almost surely, 2^8729642693 is an apocalyptic number.

It is an amenable number.

8729642693 is a deficient number, since it is larger than the sum of its proper divisors (245020987).

8729642693 is a wasteful number, since it uses less digits than its factorization.

8729642693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239107.

The product of its digits is 7838208, while the sum is 56.

The square root of 8729642693 is about 93432.5569220922. The cubic root of 8729642693 is about 2059.0433466890.

The spelling of 8729642693 in words is "eight billion, seven hundred twenty-nine million, six hundred forty-two thousand, six hundred ninety-three".